Fire-fighting unmanned aerial vehicle cable traction device

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and discloses a fire-fighting unmanned aerial vehicle cable traction device which comprises an unmanned aerial vehicle body and a fire-fighting cable, the outer wall of the bottom of the unmanned aerial vehicle body is fixedly connected with symmetrically arranged fixing plates, and the opposite sides of the two fixing plates are provided with the same counterweight seat. The opposite sides of the two fixing plates are rotationally provided with the same winding wheel, the fire-fighting cable is wound around the winding wheel, and the outer wall of the top of the balance weight seat is fixedly connected with a fixing ring. The unmanned aerial vehicle body carries the winding mechanism to pay off and fly towards the top of the high-rise building, after a fire-fighting cable is wound around the top of the high-rise building, the unmanned aerial vehicle controls the unmanned aerial vehicle body to fly downwards through the ground control unit, and the unmanned aerial vehicle can fly downwards through the installation frame, the fixed pulley, the fixed frame, the guide rod and the movable hole. The fire-fighting cable guiding device can play a role in guiding a fire-fighting cable, prevents the fire-fighting cable from interfering with a propeller of the unmanned aerial vehicle in the descending process of the unmanned aerial vehicle, and is relatively practical and suitable for wide popularization and use.

Description

Technical Field

[0001] This utility model belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a cable traction device for fire-fighting UAVs. Background Technology

[0002] Using fire-fighting cables in high-rise buildings is a highly effective fire suppression measure. One end of the cable is fixed to one side of the building, while the other end is stretched across the roof and fixed to the other side. A rope-climbing machine then carries a fire hose along the cable to the floor where the fire originated to extinguish it at close range. Currently, there are two main methods for deploying fire-fighting cables: one is for firefighters to climb to the roof, ensuring safety, and drop both ends of the cable; the other is to use a rope-throwing gun to drop the cable to the roof and fix it in place, or to throw it across the roof and fix both ends to the ground. However, both methods are time-consuming and labor-intensive. With the continuous development and maturation of drone technology, using fire-fighting drones to carry fire-fighting cables to the roof for deployment has become a better approach.

[0003] A search of CN212637909U reveals a cable pulling device for fire-fighting drones, including a winding device and a throwing device. The winding device includes a winding wheel spindle and winding wheel line-blocking plates. The two ends of the winding wheel spindle are rotatably mounted on the two winding wheel line-blocking plates, and the two winding wheel line-blocking plates are respectively connected to a winding wheel fixing plate. The winding wheel fixing plate is connected to the drone's landing gear. The throwing device includes a first support rod, a second support rod, a counterweight box, a guide ring, a first servo motor, and a rotating buckle. The two ends of the first and second support rods are respectively connected to the drone's landing gear. One side of the counterweight box is movably connected to the first support rod through a rotating clamp, and the other side of the counterweight box has a slot. The first servo motor is connected to the second support rod through a servo motor fixing component. The first servo motor drives the rotating buckle to rotate in the slot, releasing or locking the counterweight box.

[0004] However, through exploration, the inventors have discovered that this technical solution still has at least the following defects: In the above-mentioned device, the fire-fighting cable is pulled by a relatively complex structure in order to prevent the fire-fighting cable from interfering with the drone propellers during the drone's descent. Then, the drone throws the counterweight box connected to the fire-fighting cable to the ground. However, the scenario in which drones are used to lay fire-fighting cables is generally when a fire occurs at a high-rise building, and the counterweight box cannot be guaranteed to descend to the destination.

[0005] In view of the above, this utility model is hereby proposed. Utility Model Content

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A fire-fighting drone cable pulling device includes a drone fuselage and a fire-fighting cable. Symmetrically arranged fixing plates are fixedly connected to the bottom outer wall of the drone fuselage. A counterweight is mounted on one side of each of the two fixing plates, and a winding wheel is rotatably mounted on one side of each of the two fixing plates. The fire-fighting cable is wound on the winding wheel. A fixing ring is fixedly connected to the top outer wall of the counterweight, and the bottom end of the fire-fighting cable is fixedly connected to the fixing ring. A mounting frame is fixedly connected to the bottom outer wall of the drone fuselage, and a fixed pulley is mounted at the bottom of the mounting frame. The fire-fighting cable is slidably connected to the fixed pulley. A fixing bracket is fixedly connected to the bottom outer wall of the drone fuselage, and a guide rod is fixedly mounted at the bottom of the fixing bracket. A through-hole is opened in the middle of the guide rod, and the fire-fighting cable is slidably mounted on the inner wall of the through-hole.

[0008] In a preferred embodiment of this utility model, two fixed plates are fixedly connected to symmetrically arranged limiting seats on opposite outer walls. The bottom of each of the two limiting seats is provided with a positioning groove, and the top two sides of the counterweight seat are respectively in contact with the bottom outer walls of the two limiting seats.

[0009] In a preferred embodiment of this utility model, the top outer wall of the counterweight seat is fixedly connected with symmetrically arranged positioning blocks, and the two positioning blocks are respectively inserted into the inner walls of the two positioning slots.

[0010] In a preferred embodiment of this utility model, each of the two positioning grooves has a movable groove on one side, and the inner walls of the two movable grooves are slidably connected with wedge-shaped blocks.

[0011] In a preferred embodiment of the present invention, each of the two positioning blocks has a locking groove on one side, and the two wedge-shaped locking blocks are respectively inserted into the inner walls of the two locking grooves.

[0012] In a preferred embodiment of this utility model, springs are fixedly connected to the inner walls of one side of each of the two movable slots, and one end of each of the two springs is fixedly connected to the outer wall of one side of each of the two wedge-shaped blocks.

[0013] In a preferred embodiment of this utility model, a connecting rod is fixedly connected to one side of the outer wall of each of the two wedge-shaped blocks, and the two connecting rods extend to the outside of the two limiting seats respectively, and the two springs are respectively sleeved on the outer wall of the two connecting rods.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This invention involves fixing one end of a fire-fighting cable to the ground. Once fixed, the ground control unit immediately sends a takeoff signal to the drone signal control unit. The drone, carrying a cable winding mechanism, flies towards the roof of a high-rise building. After the cable passes the roof, the drone, controlled by the ground control unit, descends. The mounting bracket, fixed pulley, fixing frame, guide rod, and movable hole guide the cable, preventing interference with the drone's propellers during descent. When the other end of the cable lands at the target location, the drone pulls two connecting rods in opposite directions, causing two wedge-shaped blocks to move in opposite directions until they disengage from their locking slots. The counterweight can then be removed from the two fixing plates and fixed to the ground, thus tautly fixing the fire-fighting cable to the other side of the high-rise building. This simple structure allows for rapid cable laying.

[0016] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the guide rod of this utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the limiting seat of this utility model.

[0023] In the diagram: 1. UAV fuselage; 2. Firefighting cable; 3. Fixing plate; 4. Counterweight seat; 5. Mounting bracket; 6. Fixed pulley; 7. Fixing bracket; 8. Guide rod; 9. Movable hole; 10. Winding wheel; 11. Limit seat; 12. Fixing ring; 13. Positioning block; 14. Positioning groove; 15. Movable groove; 16. Wedge-shaped locking block; 17. Clamping groove; 18. Spring; 19. Connecting rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0025] like Figures 1 to 5 As shown:

[0026] The fire-fighting drone cable pulling device includes a drone fuselage 1 and a fire-fighting cable 2. Symmetrically arranged fixing plates 3 are fixedly connected to the bottom outer wall of the drone fuselage 1. A counterweight 4 is installed on one side of each fixing plate 3, and a winding wheel 10 is rotatably mounted on one side of each fixing plate 3. The fire-fighting cable 2 is wound on the winding wheel 10. A fixing ring 12 is fixedly connected to the top outer wall of the counterweight 4, and the bottom end of the fire-fighting cable 2 is fixedly connected to the fixing ring 12. A mounting frame 5 is fixedly connected to the bottom outer wall of the drone fuselage 1, and a fixed pulley 6 is installed at the bottom of the mounting frame 5. The fire-fighting cable 2 is slidably connected to the fixed pulley 6. A fixing bracket 7 is fixedly connected to the bottom outer wall of the drone fuselage 1, and a guide rod 8 is fixedly installed at the bottom of the fixing bracket 7. A through-hole 9 is provided in the middle of section 8. The fire cable 2 is slidably installed on the inner wall of the through-hole 9. One end of the fire cable 2 is fixed to the ground. After one end of the fire cable 2 is fixed to the ground, the ground control unit immediately sends a take-off signal to the UAV signal control unit. The UAV fuselage 1 carries the cable winding mechanism and flies towards the roof of the high-rise building while releasing the cable. After the fire cable 2 passes around the roof of the high-rise building, the UAV controls the UAV fuselage 1 to fly downward through the ground control unit. At this time, the installation bracket 5, fixed pulley 6, fixed bracket 7, guide rod 8 and through the through-hole 9 can guide the fire cable 2 and prevent the fire cable 2 from interfering with the UAV propeller during the descent of the UAV.

[0027] In a specific embodiment, two fixed plates 3 are fixedly connected to symmetrically arranged limiting seats 11 on opposite outer walls. Each limiting seat 11 has a positioning groove 14 at its bottom. The top sides of the counterweight 4 contact the bottom outer walls of the two limiting seats 11 respectively. A symmetrically arranged positioning block 13 is fixedly connected to the top outer wall of the counterweight 4. The two positioning blocks 13 are respectively inserted into the inner walls of the two positioning grooves 14. Each positioning groove 14 has a movable groove 15 on one side. A wedge-shaped locking block 16 is slidably connected to the inner wall of each movable groove 15. Each positioning block 13 has a locking groove 17 on one side. The two wedge-shaped locking blocks 16 are respectively inserted into the inner walls of the two locking grooves 17. A spring 18 is fixedly connected to the inner wall of each movable groove 15. One end of each spring 18 is fixedly connected to... On the outer wall of one side of each of the two wedge-shaped blocks 16, a connecting rod 19 is fixedly connected. The two connecting rods 19 extend to the outside of the two limiting seats 11 respectively. Two springs 18 are respectively sleeved on the outer wall of the two connecting rods 19. When the drone body 1 carrying the other end of the fire cable 2 lands at the target location, it pulls the two connecting rods 19 to move in opposite directions. The two connecting rods 19 drive the two wedge-shaped blocks 16 to move in opposite directions until the two wedge-shaped blocks 16 disengage from the two clamping grooves 17. Then the counterweight seat 4 can be removed from the two fixing plates 3. After the removal is completed, the counterweight seat 4 is fixedly installed on the ground, so that the fire cable 2 is taut and fixed on the ground end of the other side of the high-rise building, and the wiring work of the fire cable 2 is completed.

[0028] The implementation principle of the fire-fighting drone cable traction device in this embodiment is as follows:

[0029] In practical use, one end of the fire-fighting cable 2 is fixed to the ground. Once one end of the fire-fighting cable 2 is fixed to the ground, the ground control unit immediately sends a takeoff signal to the UAV signal control unit. The UAV fuselage 1, carrying the cable winding mechanism, releases the cable and flies towards the roof of the high-rise building. After the fire-fighting cable 2 passes around the roof of the high-rise building, the UAV fuselage 1 is controlled by the ground control unit to fly downwards. At this time, the mounting bracket 5, fixed pulley 6, fixing bracket 7, guide rod 8, and movable hole 9 can guide the fire-fighting cable 2, preventing the fire-fighting cable 2 from interfering with the UAV propellers during the descent. When the other end of the fire-fighting cable 2 is landed at the target location, the UAV fuselage 1... Pull the two connecting rods 19 to move in opposite directions. The two connecting rods 19 drive the two wedge-shaped blocks 16 to move in opposite directions until the two wedge-shaped blocks 16 disengage from the two locking slots 17. Then the counterweight 4 can be removed from the two fixing plates 3. After disassembly, the counterweight 4 is fixedly installed on the ground, so that the fire cable 2 is taut and fixed on the ground end on the other side of the high-rise building, completing the wiring work of the fire cable 2. After the wiring work is completed, the drone can perform other tasks. Then the fire hose is fixed on the load crawling device. The load crawling device crawls upward along the fire cable 2 until it reaches the vicinity of the fire point of the high-rise building. The fire hose starts to work and sprays a dense and solid stream of water to extinguish the fire.

Claims

1. A fire-fighting unmanned aerial vehicle cable traction device, comprising an unmanned aerial vehicle body (1) and a fire-fighting cable (2), characterized in that, The bottom outer wall of the unmanned aerial vehicle fuselage (1) is fixedly connected with symmetrically arranged fixing plates (3), the same counterweight seat (4) is mounted on the opposite side of the two fixing plates (3), the same winding wheel (10) is rotatably mounted on the opposite side of the two fixing plates (3), the fire-fighting cable (2) is wound on the winding wheel (10), the fixing ring (12) is fixedly connected to the top outer wall of the counterweight seat (4), the bottom end of the fire-fighting cable (2) is fixedly connected with the fixing ring (12), the mounting rack (5) is fixedly connected to the bottom outer wall of the unmanned aerial vehicle fuselage (1), the fixed pulley (6) is mounted on the bottom of the mounting rack (5), the fire-fighting cable (2) is slidably connected with the fixed pulley (6), the fixing frame (7) is fixedly connected to the bottom outer wall of the unmanned aerial vehicle fuselage (1), the guide rod (8) is fixedly mounted on the bottom of the fixing frame (7), the guide rod (8) is provided with a through-hole (9) in the middle, and the fire-fighting cable (2) is slidably arranged on the inner wall of the through-hole (9).

2. The fire-fighting drone cable traction device of claim 1, wherein, The opposite side outer walls of the two fixing plates (3) are fixedly connected with symmetrically arranged limiting seats (11), and the bottom of each of the two limiting seats (11) is provided with a positioning groove (14).

3. The fire-fighting drone cable traction device of claim 2, wherein, The top outer wall of the counterweight seat (4) is fixedly connected with symmetrically arranged positioning blocks (13), and the two positioning blocks (13) are respectively inserted into the inner walls of the two positioning grooves (14).

4. The fire-fighting drone cable traction device of claim 3, wherein, The side of each of the two positioning grooves (14) is provided with a movable groove (15), and the inner walls of the two movable grooves (15) are slidably connected with wedge-shaped clamping blocks (16).

5. The fire-fighting drone cable traction device of claim 4, wherein, The side of each of the two positioning blocks (13) is provided with a clamping groove (17), and the inner walls of the two clamping grooves (17) are respectively inserted with the two wedge-shaped clamping blocks (16).

6. The fire-fighting drone cable traction device of claim 5, wherein, The inner walls of the sides of the two movable grooves (15) are fixedly connected with springs (18), and one end of each of the two springs (18) is fixedly connected to the outer wall of the side of the corresponding wedge-shaped clamping block (16).

7. The fire-fighting drone cable traction device of claim 6, wherein, The outer walls of the sides of the two wedge-shaped clamping blocks (16) are fixedly connected with connecting rods (19), and the two connecting rods (19) respectively extend to the outer sides of the two limiting seats (11), and the two springs (18) are respectively sleeved on the outer walls of the two connecting rods (19).

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